Analyze your routine, maybe it's not working for you. I tend to get sore almost all the time on everybody part but not everyone does. This one girl I trained for a few weeks NEVER got sore. I wasn't with her on all her workouts, so I assumed she lacked the proper intensity. So when I was with her, I would torture her. I would even do plyometrics on occaision. She never got sore. I would think she would be even more sore because she hardly ate anything. Believe me, I harped on her all the time. At least I got her to add more protein to her diet. The point is, if you are getting stronger/bigger/cut, etc and have the energy, it's working. If not, something is wrong. I notice that many people, women especially, tend to lift too slow. Form is great, but it becomes a point of diminishing returns. They can't life enough weight.